Concrete-mixing machine



Oct. 21, 1930.

A. W. RYBECK CONCRETE MIXING MACHINE Filed Nov. 22, 1923 2 Sheets-Sheet1 v I T334410 452? M /iiikymm Qua

Dct..2l; 1930. A. w. RYBECK 1,779,013

CONCRETE MIXING MACHINE Filed Nov. 22, 1929 2 Sheets-Sheet 2 Ill SMMM z/I Aim? M flyimk.

: bucket Patented ea, 21, 1930 U r ST rs;

ADOLII-I W.

' CONCRE E-MIXING, MACHINE Application"filed November 22, 1929. ,Serialr vmaois.

This inyention. relates to certain new and I useful'improvements'in'concrete jmixers espe} cially adapted for: street paving and refers moreparticularly to their discharge buckets.

)5 Thedi'scharge buckets of machines of this type usually, travel alonga horizontal boom to facilitate spreadingof the concrete-,.anc l in thepast .difiic'ulty. has been experienced. in

discharging the {contents of the, p H i outer end by means'ofacable w';i lhecable properly i It; is therefore arrect of g i'riyciition toprovide a discharge bucke'tfof this character', so constructed astoimpart'a' motion ,to the material therein during discharging,

" whereby a positive andlquick discharge of material isobtainedi rAnother. object of thisinventiongresides in ,itheprovision of adischarge bucket. of the,

V j 'v characterdescribed: which isISO constructed 0 asto have a greaterdischargelangleufl And a, furthermobject of this invention is togenerallysimplify and improve the'constructi-on of suchr buckets. w

l WVitl1 the above and; other I 7.25 whichWill-appear as thexdescriptienproceeds, 1

my invention resides'in the novel construction, combination andvarrangement of parts substantially as-hereinafter described and moreparticularly defined by the appended claims, it being understoodthatsuch: changes in theprecise embodiment of-the' herei'ndis the scope ofthe claims,v

' f closed-invention may be made .as c0me-Within In the faccompanylngdrawings, I- haye i1? lustrated. one completeexample of the phyfsicalembodiment of my. invention constructed according to the best model ihave so far'dee' V I visedlfor the practical application; of the prin"ciples thereof,,and in Which V Figure list an elevational View of aportion of a concrete mixing machine of the paver type embodying my.inventiongand having parts broken away to illustrate structural vdetails; and V echargebucket persek V I lieferring now more particularlyto the acc ompanying drawings, the numeral 5 de'sig-j' '-.channelirons[Ehe lower portionsoftheicarriagesid'es hayc tplates22iriyetedorotherwise secured thereto to Which the 'bucket"8,is.. se-T cured.

2,? comprises a, stationarysection- 231ldonsistng o l ste i al yvtical"fet ard m t 24, Side fW a/11S'25' fltl) whi 'ch the plates- 22are] i .secured, and abottom26 disposedatanangle to "the verticalforwardwalLQLj 'l he edges of the 3 side 5 Walls 25 are also {directedetan eo angle andQarestrengthenedlbysangl e-irons27'rivetedithereto.Theiipper endsiot theangle ,irons QFheVebearingnembers-QSqfi ed there-f if-to,ito xvhichitheimoyablesectionz29,yofnthe" v I 'The movabl'sectiouw consists ofanzarcu sate-rear Wall .31,- sideiwalls r32-anda bottom. o when;the\{sections aregclosed nto e'acgl-i 1J0, erl gthel; m ib eqm -z s@1126 c m t eth r neer oi; c

- Figure 2 isa perspectivevicte of the dis-i i portably mounted acaterpillar'traction me h n sm 16- T u ua mi i g d um? is mounted upontheframe and is arranged tofdischar'ge its contents into} a dischargebucket 8, through achuteiS), V

,The dischafge buck tgg is sfispe ded a carriage 10, which is movableaong a boom wih's ne y nlq n e l etit 'nn a suitable" bearing 12 and.supp to beconnectecl ithV-i'andwound'about afdrum 18 carried by theboom'As is'icustomary the dixurnlSena'bles the boomto befa djusted.ertically,and to swing the same aboutoits piyotal flanges outwardly; and thecarriage 1Q isproyid'edwith spacerdyarms-,projected upwardly Lonoppositesidesofthe-boom,tdniouhtrollers 1; eg s f he 1 '59 QLWhi-Ch track-uponthelower, fl

"Therbu ket SQ as best, illustratedfi bucketiis pivotally.connectedsbypinsf30.

a' o t i di-at t e/ 9 RYBECK, 0F LWA KEE, WISCONSIN ASSIGNORTO TQLESMITHCQMiQE;

0F MI WAugEE, wrsoous me CQRPQRATIQN OE'WISGQNSINi 1 2-;

7O mounting-a handwheel 19,;is proyiddl tjoi be ra pe if p r t rl ta ioedu q i p a rrormeox r e The-vboompreferably-consistscf ja pair itspaced channel {irons arranged With'ftlieir 7.6

the apexes of an angle slightly more than90 degrees. Inasmuch as theside walls 32 are received between the sidewalls and are of such size asto. lap. over the edges of the walls 25 -when closed, itis evidentthatwhen the movable section is in closed posltion leakage of materialis prevented. It 1s also material.

The means for closing and malntaining the movable section closedconsistsof a lever 34;, formed by apair of spaced links having one end pivotallyconnectedwith afian'ge '35 secured to the bottom 26 of the; stationarysection and having their other end portions connected with the bottom83' ofthe movable section by a chain 36; g The bottom 13301? the amovable section is preferably; strengthened by ojchannel iron ,crosspiece 37 its point in connectionwithfthe chain 36.

' It will thus be seen thatupwar'd chain, taut and closes (the {movablesection, andtobbtain this movement of the lever its ,7 I free endisconnected with a 'leveri3 8 fixed to a shaft 39 journalled at its'endsinbearings 4O carriedbythe sides of the carriage 10.

7 The 'ineans' connecting'the levers 3tand 38 consist, of an arcuatelink 41' having one end pivotally connectedwith the outerend of thelever 38 and its other end connectedrwith the tee end of the lever 34'through a linl rmech'a nism" 42 which embodies shock absorbing springs43.

, Also fixedto the shaft 915s a ear 44m ing'atits outerend a roller 45and abandgri'p46. Thegrip 4E6 facilitates manual-actuation 1 of the"shaft 39 to V Qpen and close "the movable section VVhen; the movablesection 1 is in closed positiomas'best illustrated in full lines in'Figurej 1,.ithe'aXis of the pivotal connection of the lever 38jwith thelink''l moves beyond an imaginary line drawn through the centers of theshaft 39 and the 'con'ne'ctiou'of the link 42 withthe fouter Qfree; endoffthe' lever 34, Movements of the .lever'38 when in this 'po sitionisrestrained by afmovable stop 47 normallyheld against pfthecarri'agelO.in V, a

The movable stop t? is maintained'in its position engaging the bearing48 by an ex- 7 y v v v pansive spring 49, coiled about a. shaft 50" themovable 3 0 closedfljorsitionl i r ;Fr0m the foregoing description takenin connection with the accompanying draw- "ings,y it will be readilyapparent to those the inner end of a bearing'48"forming 'parteirtendediromthe "stop' and; slidablein the bearingAS, andconfinedbetween the outer end ofthe bearing and lock nuts 5l-thr'eaded V I on?theouter end of the. shaftBO. As stated, 7 the axis of the connectionbetween the lever 7 I 3,8. andjthe link 41 is beyond dead center when ithej lever 3'8 engages thestop'Zgsothat the movajblef section is heldclosed and-*may be movement of the free ender thelever3 l draws the,

opened by merely moving the lever to the other side of deadcenter.

V. In'operation, the bucket 8 after havlngbeen filled with concrete iscarried outwardly along the boom 11 to the place at-which 1t 1s desiredto discharge 'its contents, and then by means to be describedhitistripped and discharged. The means for carrying the bucket outwardlyalong the boomjis of con ventional'construction and embodies a cable 52having one end connected in any suitable 'manner withthe carriage andbeing trained about an idler sheave 53 at the outer end of the'boomlrFrom" thel sheave 53 the cable extends rearwardly and is trained over asheave 54adj acent the inner end of the boom with its peripheryinsubstantial alignment with the axisabo'utlwhich the boom swings,

and. from it extendsupwardly through the center of the bearing 12 to betrainedabout another idler'sheave 55;"and thenfis brought downwardly inthe customary manner to be woundabout a suitable drum; not shown.

no Afterthebu'c'ket s rea'chesiits desired p0- sition along" the boomthe operator disconnects the drive'jfrom 1ts respective drum'and causesa-seconddrum,'not shown; to WlljlCllIP a retrieving cable 56 toeffectthereturn of the bucket. The outer end of the retrieving cable56:isiconnectedrwith'thestop d7 as at 57 and upon inward movement of thecable the tension o'fthe spring 51 is; overcomeand the stop l'? is movedinwardl y carrying the lever 38 togthe other side of-its dead center andreleasing themovable sectionof the bu'cket for opening-by the weight ofmaterial therein; "Ttti s noted that inasmuch as the ority of thecontents: are disposed above the movablesection bottoni the materialwill I be given afcertain" motion inope'ni'ng which will insure its:immediate and-complete} disf'charge; f-

a The retrieving eable 56likethecable 52'is trained about a sheave"rotatable about the axis},ofthe sheave {54 to ,also'ektend upwardlythrough the bearing 12 and be trained about sheave 58 adjacent the"sheave-155' from fwhere itfextends. downwardly to be wound about'itsrespective jdrum. e s thebii'cket is 'returnedupon retrieving} the;cable 56 it re mains inopen positionuntil the roller45 "carried bythelever 44, engages a shoeorfcam 59 fixedftoa eross barfiiO of-the'boom;

" the roller 45 engages the cam 59 it isforced downwardlyfrotating the"shaft- 39in a' counterclockwise direction nd thus drawing skilled inthe art to which "an invention of the vcharacter described appe'itains,that I provide an improved constructionforfdis'achargebuckets;of'iconcretefmixingj'machines 3 charge of itscontents isassured and in which novel means are provided for opening and closingthe same. v

What I claim as my invention is: I

1. In a device of the character described, a discharge bucket comprisingcooperatingv sections of substantially the same cubicalcontent, meanshingedly connecting the sec tions at their tops whereby onesection ismovable with respect to the other, and means releasably maintaining saidsection engaged with the othersection to close the bucket,'said tionedsection, means connecting the lever with the movable section, means fordrawing the lever away from the movable section,

means 7 center to release the movableisection for open- 5; Ina device ofthe character described, a discharge bucket comprising'cooperatingsections, means hingedly connecting the sectionsadj acent their topswhereby one section is movable with respect to the other, andmeansreleasably maintaining said sections engaged with each other tocl'osethe bucket, said means comprising a lever connected with one section,.fiexible"means connecting the lever withthe'other section, and meansfor moving the lever. f

In .testlmony whereof have hereunto aflixed my signature. a

.7 iADOLPH W.,RYBECK;

and means whereby said last 'mentionedmeans moves beyond dead center toreleas ably maintain the movable section in closed position 2 3. Abucket of the character described," comprising cooperating fsections,means with respect to the other, means'for maintain ing the movablesection in engagement with the other to close the bucket, said meansincluding a lever pivotally connected with the second section, meansconnecting the lever with tllIIlOVitblG section and an operating leverswingingly mounted, means connecting the lever with the operating lever,and means for moving the operating lever-to a point at which itsconnection withthe means connectv s i a ing it with the first mentionedlever passes I beyond deadcenter to releasably maintain the movablesection closed. I I a v V 4. A bucket of the character described,

comprising cooperating sections, means hingedly connecting the sectionsadjacent their tops, whereby one section is movable with respect to theother, means for maintaming the movable section in engagement 1 with'theother to close the bucket, said'means including a lever pivotallyconnected with '7 the second section, means connecting the hingedlyconnecting thesections adjacent their tops, whereby one section ismovable lever with the movable section, an operating i Y leverswingingly mounted,means connecting its connection with the meansconnecting g with the first mentioned leverpasses beyond 7 V dead centerto releasably maintain ,the movable section closed, and m'eans formoving the lever with the operating lever, means for moving theoperating lever to a'point at'which a the operating lever to the othersideof dead I

